NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 712
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-12-01 | 712-396-8XXX | 8000–8999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | COUNCILBLF | IA |
| 2006-12-01 | 712-485-8XXX | 8000–8999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | NEOLA | IA |
| 2006-12-01 | 712-545-8XXX | 8000–8999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | CRESCENT | IA |
| 2006-12-01 | 712-566-8XXX | 8000–8999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | UNDERWOOD | IA |
| 2004-05-26 | 712-207-2XXX | 2000–2999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | SHELBY | IA |
| 2004-05-26 | 712-407-2XXX | 2000–2999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | MINDEN | IA |
| 2004-05-07 | 712-307-6XXX | 6000–6999 | Assigned | WALNUT TELEPHONE COMPANY, INC. - IA | 774B | AVOCA | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.